There are three kinds of third shot drop. There’s the flat high and easy forehand, the forehand topspin which is high and fast dipping, and the backhand low slice. This video shows great detail of the arcs of the ball for each kind of shot.

Jordan and his wife do a great job here.

​https://youtu.be/QrtUw7DyW6s

Notice the long cross court NVZ dink shots. Patience is required. You must stay in the rally and not go for it too early. Also notice how low the dink shot approaches are.

youtu.be/Bir8KtbOvhE

The roll forehand volley from a lower (just below the waist or above) can be used to attack or put away balls with the control of topspin. This shot takes practice to learn and is well worth it. As said in the video, 4.0 + players have this shot but it can be learned by a 3.5 player as well. It is an advanced shot. Enjoy the video. This is a shot we will try in our classes. Enjoy!
​youtu.be/-gn37Q_meAA